#header {
    height: 80px;
    width: 100%;
    position: fixed;
    border-radius: 20px;
    background: rgb(230, 200, 200);
    z-index: 100;
}

#logo {
    margin-left: 35%;
    line-height: 80px;
    font-family: 楷体, serif;
    font-size: 40px;
}

#nav {
    float: right;
    margin-right: 20%;
}

#nav li {
    width: auto;
    float: left;
    margin-left: 30px;
    line-height: 80px;
}

#nav li > a {
    padding: 5px 10px;
}

#nav li :hover {
    background: gray;
    border-radius: 10px;
    color: white;
}

#ptReaMessage:before {
    content: "";
    display: block;
    clear: both;
    height: 10px;
}

.left:after {
    content: "";
    display: block;
    clear: both;
}

.login input[type=text], .login input[type=file], .login input[type=password], .login input[type=email], select {
    display: inline-block;
    border: none;
    width: 240px;
}